Sequence Break

by DrySpell

Rating: mature
Tags: Sex, Shining Armor, Human, Twilight Sparkle, My Little Pony: Friendship is Magic, Romance, Porn
Length: 3689

Twilight has done everything she could with her brother under the sheets. However, after a little critical thinking, she remembers something important that she can't believe she missed.

Twilight has shared a bed with her brother for countless nights. Sharing their pleasures and desires has created a bond that was built on the foundations of a proper relationship. But one night, as a thought flashes through Twilight's mind, that foundation shakes.

They've missed a crucial step in the process. And it's been bugging her more than she lets on...

Contains: The realization that one's sister has a fatter ass than she was once believed to have, and acting on the impulses that come with such a realization. (incest)

The picture is 2632771 by the talented BookmarkPhantom.

Entrant into the "First Time February" contest.

Published 2022-02-28 02:10:01 UTC
Last updated 2022-02-28 02:10:01 UTC

First Time?

Most times, when she came to a painfully obvious realization, Twilight felt a little silly. She was one of the greatest minds of her generation. Not many things managed to slip it. She wasn’t perfect, though she strived for it, to a fault at times. She understood that these things happen, and it didn’t bother her much when they did.

Her brother paused, bringing attention back to her surroundings for a moment. She was slightly chilly, but her head felt hot. Her fingers were sore from clawing at the thick sheets that lined her bed. Her ragged breath was given a bit of time to stabilize. She was staring up at a pair of concerned, yet beautiful baby blue eyes.

“Are you okay?” Her brother’s voice was low and primal, but his usual gentleness came through clearly. He brought his hand from either side of her head and brushed some of her misplaced hair aside, giving him a better view of her face. She couldn’t see her own face, but she could guess it was red as she looked back in silence. “You look like you’re worried about something…”

“Not really,” she lied. That realization from before never left her mind. Instead, it festered a bit of embarrassment inside of her. Her hand reached for the one still planted in the bed next to her head, caressing it. “It’s nothing. You can keep going.”

“Hmm…” His eyes narrowed, but he kept quiet. He replaced his hand on the bed, took a breath, then pushed his hips forward once more, much to Twilight’s pleasure.

She’d long since learned the art of keeping herself mostly quiet, but there were times when she couldn’t help but let out a muffled whimper. Her hand quickly rushed to cover her mouth, and her legs clenched up just as fast.

Twilight looked down, watching in silence as Shining’s dick pulled from her, leaving a void around her stomach her body begged to be filled. Thankfully, he was quick to oblige, pushing in with as much vigor as he could muster. Again, she let out an involuntary squeak.

His head pushed through Twilight’s pussy, easily pumping through her with rapidly building speed. Her body sucked him into its wet depths, squeezing and pulling on the shaft with all its might. Her body shuddered with each quiet slap of Shining’s thighs against her ass. Twilight managed to keep her voice to a minimum, but a lewd, wet squish took its place.

With a strong jut of his hips, Shiningpulled back, bringing his hands with him. They traveled down Twilight’s curves, slowly finding a place on her hips. He pulled her closer, lifting her ass into the air slightly as he did. After leaning forward, he gyrated his hips, introducing Twilight’s more sensitive areas to an arousing twirl before they were pounded as well.

Twilight began to drift off once again. Heat gathered at her crotch, bringing her pleasure to euphoric heights. Drool started to drip from her mouth, and she teared up a bit. Her hand left her mouth and traveled up to Shining.

It was then that she had that thought once again. Her hand slid across his cheek, bringing his attention back to her. Unlike last time, he didn’t stop out of consideration. Her thumb flicked across his features, pressing against his ear before it stopped.

Right now, with her face only a foot from her beloved brother’s, she could only think of a single discrepancy.

“Nngh, Twily…” That all too familiar grunt brought her back once again. Her legs pulled together, crossing at the ankles. Shining pushed in with all of his might, nearly folding Twilight at the stomach as he did. Deep inside of her, she could feel the tip of his cock as it twitched and trembled, undoubtedly pumping plenty of his cum as far as it would go.

With a few more thrusts, he finally retreated fully. Her hand fell from his face, resting on her stomach just above her belly button. Shining got to his feet, his breaths just as heavy as Twilight’s. She looked up just in time to spot him peeling the condom from his shaft, heavy with his seed. He gripped it in his hand before tying it up and quickly wrapping it up in a tissue.

Twilight sat up, her bottom half still understandably weak from the beating it took. Still, Twilight maneuvered until she could stand up on the side of the bed. She turned, meeting eyes with Shining again. Of course, there weren’t many words for the two to share. They broke eye contact almost as quickly.

The two had gotten the aftermath down to a science by this point. The two were dressed in no more than a few minutes, and Twilight prepared to leave Shining’s room as quickly and covertly as she could. Considering it was at the end of the hall, farthest away from their parents, they weren’t too concerned with getting caught at this stage.

“Hey.” Shining walked to Twilight, as he called for attention. She turned, meeting his gaze again. It was the same one from before when she first realized the discrepancy. “Are you sure you’re okay?”

“Yeah.” She looked toward the door. “You worry too much.”

“If you want this to stop, it’s okay,” he said. Twilight’s eyes went wide. “I would understand.”

“That’s not it,” she replied. “It’s… well…” Her eyes drifted down his face, lining his features before landing on his features. They looked away just as fast. “No… I can’t think of anything.”

“Twi…” She smirked, then walked up to him. She grabbed him in a hug, squeezing him as close as she could. After a bit, he returned it.

“You’re such a worrywart,” she said. They released each other, with Shining’s expression slowly fading away. “I promise if I have a problem, you’re the first to know.”

“Alright. I’ll trust you.” He smiled back. “Love ya, Twi.”

“Love you,” she responded, her tone suggesting a bit more than Shining’s. She opened his door, quickly checking the hall before skipping out. It was only a few steps away until she was in the comfort of her own room. A few more steps and she could fall into her bed. Already dressed in her pajamas, she had no reservations doing exactly that.

With her face against her pillow, she could finally calm down. The heat from her body was slowly leaving her, and her heart became calm. But, after a few moments of silence, she began to heat up again.

“Why couldn’t I just ask…?” she grumbled. The words had gotten caught in her throat, and her body instinctively moved for a hug. She took a deep breath. “This is gonna be harder than I thought…”

Shining couldn’t help but be a little conscious of his size. Walking through the creaky halls of his childhood home in the depths of the night, especially when he was trying his hardest not to draw attention to himself, was a bit difficult for him. He was used to the load, rambunctious situations being a royal guard put him in. He left the covert ops to those more suited.

Still, he had no choice. He gave Twilight his word that he’d help her through any troubles she was having, and less than 24 hours later, he was called to put that to the test.

He was a bit confused by Twilight’s request though. Whenever they had their meetings, they kept it strictly to Shining’s room. Less of a chance to get caught because of the distance from their parents as well as Shining’s previously mentioned lack of stealth ability. They also didn’t make it a habit of meeting too often, just in case one of their parents decided to investigate their activities…

Shining’s brow furrowed. His paranoia had given him headaches in the past, and he’d been called out by more than one friend for it. Still, it was a shortcoming he was willing to bear.

Before long, he made it to his destination: Twilight’s bedroom door. He glanced to the side, making sure that their parent’s door was firmly shut before quietly rapping on the door beside it.

“Twi? It’s me.” Shining heard a slight shuffling behind the door and the sounds of footsteps as they approached. Before long, Twilight appeared before him.

“Hey,” she said plainly. “Come in.” He quickly obliged.

He hadn’t seen Twilight’s room in quite a while. Everything was neatly packed away, with barely a hair’s breadth of empty space. The room was oddly clean, almost sterile. Yet, it still felt distinct, like Twilight had left her mark on the place.

His personal tour was cut short once Twilight sped past him, retreating to her bed. She hopped onto her bed, grabbing a pillow as she did. Her arms wrapped around it, pulling it close to her chest. She didn’t say a word, instead peering over the pillow at Shining with a bold glare.

So…” Shining focused himself on her. She was wearing a wispy white blouse and a pair of panties. Not much was left to his imagination. “What did you want to talk about?”

“Nothing in particular,” said Twilight. Her voice was slightly muffled by the pillow. “Just… us.” Shining took a deep breath, then averted his eyes.

“I understand.” He pursed his lips, then turned away. “We don’t have to see each other any—” Shining flinched as the pillow Twilight was holding bounced off of his head and onto the floor.

“No! That’s not what I meant,” she exclaimed, as much as she could with her voice low. “Why do you keep thinking that?” He shook his head, confusion written clearly on his face.

“Yesterday, you seemed a bit… off,” he explained. “Like something wasn’t sitting right with you. You told me it was fine, but… you’d lie if it meant not hurting my feelings.” Twilight was silent for a moment, then she chuckled.

“You’re a little slow sometimes, huh?” she said, holding back her laughter. Shining frowned but said nothing. “I love the times we spend together. It helps me relax, in a weird way.” She sighed. “After all the day’s work, I can come home and spend some quality time with someone I love.”

“Okay…” Shining grabbed his chin. “So why did you seem so off before?”

“That’s what I wanted to talk about,” she said, with a sigh. “Shining, don’t you think we missed something?” He raised an eyebrow.

“Something like what?” Twilight opened her mouth to respond but closed it after a few moments. She closed her eyes, then took a deep breath. Once she opened her eyes again, her eyes were once again bold.

“It’ll be faster to just show you.” She pat the spot on her bed next to her. “Come. Sit.” Though he was reluctant at first, he obliged. It was a short walk, but soon he was sitting beside Twilight, looking down at her suddenly beet-red face. All the while, she didn’t look away.

“What now?”

“Um… eyes.” She pointed at his face. “Close them.” Once again, he had questions but didn’t ask them. He followed her instructions, slowly closing his eyes shut.

“This better be good,” he said, with a chuckle. Twilight didn’t respond. In fact, he didn’t hear anything but his breath for a while. “Uh… Twily?”

Again, no response. At least, not with words. Shining heard shuffling and felt Twilight move from her spot. Not far, maybe just an adjustment. The darkness accentuated his surroundings that much more. He could hear her breath as she closed in, feeling her soft fingers caress his cheeks. A scented mix of flowers and paperback books slowly got stronger.

His eyes slowly opened, and he met Twilight’s narrowed gaze.

“I told you not to open your eyes.” His hand wrapped around her back, pushing her into him. They were soft and plush and sent a shock up Shining’s spine. After only a moment, Shining pulled away. Twilight, though, was not nearly finished.

She pushed in again, this time introducing her tongue into the mix. It slowly lapped at Shining’s lips, trying to push through and reach beyond. He obliged, meeting her in the middle with a small jab. With the inch, she took a mile, quickly flanking either side of his tongue and flicking around his mouth wildly. He returned the favor twofold, advancing into her mouth and doing the same.

Twilight broke away this time, taking in heavy breaths of air. A few thin lines of saliva connected the two as she hovered over him.

“No, you didn’t,” Shining mumbled. His hand returned from her back, sliding across her stomach and resting on her breast. “You just told me to close my eyes. You didn’t say I couldn’t open them.”

“Idiot.” Twilight’s eyes shut. Shining circled her nipple with his index, making Twilight’s breaths turn shallow. “You didn’t react like I thought you would…”

“What do you mean?” he asked, now gently pinching it between his thumb. With a slight pull, she gasped slightly.

“That was our first kiss,” she mouthed. She looked down, her forehead tapping against his chest. Shining’s other hand snaked around her once again, this time pushing past the hem of her panties. “I thought you’d be a little more… starstruck.”

“There’s no way that’s true,” said Shining. ‘“I mean, we had to, right?”

“Nope. Not once.” She looked up at him again. “I’ve been keeping track.” Shining paused his foreplay, then slowly pushed up against Twilight. In only a moment, their positions had reversed.

“Sorry that I didn’t notice,” he said, with a smile. “I’ll make it up to you.”

“How?” asked Twilight. “We already had our first. And second…”

“Trust in your big brother a little more,” said Shining. He leaned down and planted a kiss on her neck. He followed it with a couple more upward until he reached her lips. Once again, it was on the shorter side, but Shining could feel the goosebumps as they formed on Twilight’s skin.

All the while, his hand had returned to her panties. His middle and ring fingers sliding over her clit, made her flinch. He’d been around it so much, he could navigate her with his eyes closed. He pushed in just a bit, then pressed up. Her hips raised with it.

“Mmph…” Twilight’s muffled moan didn’t escape Shining. Despite her tightening grip on his fingers, he slid in and out without much resistance. Her moaning became more and more pronounced, and her body began to shake.

“Twily.” Her nickname breezing past her ear made her shiver. Shining held her close. His lips pressed down on hers, quickly opening the two up to another deep makeout session.

Twilight’s legs shook, then stretched out as far as they could go. Her hips trembled a bit under the pleasure as Shining’s fingers brought her to an orgasm. Her toes curled, and she pushed his fingers out with as much might as she could muster. Against his lips, she moaned and murmured.

Shining pulled his fingers out, slick with warm cum. With one finger, he dispatched her now soaked panties, dropping them to the floor. Next, he worked on himself, slowly stripping into his birthday suit. His hand reached out for the desk next to the bed, pressing down on the wood.

“Oh…” he mumbled. He looked at his hand, checking to make sure he didn’t miss. “The condoms. They’re in my room.” The look on Twilight’s face told Shining that she’d also forgotten. He sighed, then reached for his discarded garments. “I’ll go grab them.”

“Wait.” Twilight sat up, then shakily got to her feet. “How about… we do another ‘first’?” Shining’s eyes went wide, but Twilight didn’t back down. Once again, her eyes were bold and even fiercer than before. Shining chuckled.

“Are you on the pill at least?” Twilight smirked.

“Of course.” She said confidently. “ While it doesn’t apply to our current situation… you can never be too careful.” Shining ruffled Twilight’s hair, bringing a frown to her face.

“That’s my Twily.” His hand went down to her neck. He pushed against her until she was firmly against the wall. He moved in, indulging in one of his now signature deep kisses. Now he knew it was another thing that Twilight loved.

His hand wrapped around her body, lifting her legs up until she was suspended with only the wall and his strength to support her. Her legs instinctively flanked his sides, giving him full access to her pussy. Shining pulled away only to push his hips forward impatiently. His head slipped around a bit, but after a few tries, it finally pushed past her lips.

He immediately realized he was dealing with a different beast. It was much wetter, much tighter, much hotter than before. His body clenched up as soon as he entered, but he couldn’t stop now. The sensation was a drug, and it was forcing him to overdose.

“Haah, nngh,” Twilight moaned. It was louder than normal. “So much… did you get bigger somehow?”

“C-Course not.” He panted. “You gotta keep it down, Twi. Mom or dad’s gonna hear.”

“I can’t help it,” she whined. “It feels good. M-Much better than normal.” She took a big breath, but it was taken away once Shining pulled back. With a fierce thrust of his hips, another whimper escaped her.

“Maybe we should do this more often?” Shining laughed. He pumped into her a bit more, his cockhead squishing nicely against the back of her pussy.

His normal impatience was harshly curbed. While he wanted to go off like a rocket, each squirming thrust threatened to suck the cum straight out of him. He felt every pump of blood that made his dick twitch and flick inside of her.

Twilight’s breathing returned to normal. Shining felt it hot on his neck. He leaned forward, pressing his forehead against the wall, and steeled himself. With a deep breath, his speed doubled, then tripled. Each thrust sped up to match the beating of his heart. Her pussy squeezed in response, pulling him back in with each retreat.

“T-Twi,” he called, his voice strained. A strong grip on his back was all she could offer in response. “The condoms… I don’t think I can go back.”

His head craned downward as he got into the zone. In and out, he watched his dick blast through her. Every pump came with a small bulge that reared its head near her belly button. A sloppy, sticky sound came from her every moment his hips slammed into her ass. His body clenched over and over as the feeling spread from his crotch to his fingertips and back. Every part of him began to catch fire. He was at risk of losing himself.

Twilight’s moans in his ear didn’t help one bit. They were soft but rugged. If they weren’t careful, they could wake up the house. Despite knowing this, Shining kept going. Her hot breaths against his neck, her body clenching up as she came again. It was all worth it. His breaths started getting ragged, and he started to lose control of his voice as well.

“Shiny,” Twilight called. His nickname brought him back from Cloud 9. But she had no intention of letting him stay down here. She pulled her head back, then pressed her forehead against his. Their eyes locked and for a moment, the world seemed to stop. “Inside… now.”

He pushed himself as hard as he could until there was no more to give her. Even then, he pushed his entire body up, standing on his toes. He exploded like a rocket, with cum stuffing her tight pipe in large, hefty waves. Each load was bigger than the last. It dribbled down his cock, like magma, slowly enveloping him in his own explosion.

“Ah, h-hot…” Twilight’s voice was shaky, but she still managed to keep it low. “So hot… that’s what it’s like?”

“Nngh, yeah,” grunted Shining. His cock pumped and sputtered, each twitch filling her up even more. Eventually, he fell back down to his feet. His grip loosened, but he managed to keep holding Twilight up. “I think that was… a record.”

“P-Probably,” she said, breathlessly. “Mmh, I can feel it there… moving.” Shining pulled away from the wall, bringing Twilight along with him. He maneuvered to the bed, bent down, and placed her gently on the sheets.

“I’m gonna pull out,” he muttered. Twilight bit her lip. He slowly pulled away, more waves of pleasure traveling up his body. With a sharp tug, he popped out of her, his cock slick with the cum of them both. He looked down at Twilight as a small bead of cum flew out of her, followed by a steady stream.

“Mmh,” she hummed. She slowly sat up, looking down at her leaking pussy. She pressed down on her stomach, pushing another bead out with it. “I feel so full. And it’s not that hot anymore…”

“It’s kinda cold, actually,” said Shining, looking down at his dick. The cum had already started to dry. “We should probably get dressed before this becomes even more of a mess.”

“Yeah…” Twilight didn’t even look up from herself. Shining looked down at her as she did. “Hey Shiny?”

“Yeah?”

“One more time?” Shining opened his mouth, but the words died before he could speak them. Twilight’s puppy dog eyes could kill a charging bull with just a glance. Shining stood no chance.

“That’s… we’re gonna get caught.” Twilight smirked, then laid back, leaving herself open again. Shining frowned at her, trying his hardest to deny her request. After almost a minute without budging, Shining took a huge sigh. He leaned down.

“Hey, Shiny.” Her voice was sickly sweet.

“What?”

“Love you.” She leaned up and pecked his lips. His frown subsided, then was replaced with a smirk. No matter what it was, he couldn’t fight the pleas of his little sister.

“Yeah…” he said, with a laugh. “Love you, too.”

Author's Note

After-Sex Smoke